At leadt in my language, hunting is not generally used in other contexts, so I can see why someone wouldfind it funny, maybe.
Also, chanterelles are an absolute staple, probably the most common one. Others are russula and boletes (this one being the favourite for people generally). Some others commonly picket are milkcaps and parasols (personally their resemblance to deathcaps makes me uneasy).
Deathcaps could be confused for Rusulas, some milkcaps and parasols.
I don't deny that the timing seems suspicious, would be awfully stealthy compared to the case of the killer windows and literally blowing up a plane. But I do suppose getting some powedered deathcap into his food would not be too difficult.
I do wonder if the motive would really be the recent moon failure, like would they really assasinate someone over something so petty? Maybe Putin was so desperate for a public win and he can't afford to try again?